High voltage load switch is a type of high-voltage electrical equipment specifically used to connect and disconnect load current. It is suitable for three-phase AC 10kV, 50Hz power systems, or used in conjunction with complete distribution equipment, ring network switchgear, combined substations, etc. It is widely used in domain network construction and renovation projects, industrial and mining enterprises, high-rise buildings, and public facilities. It can serve as a ring network power supply or terminal, playing a role in energy distribution, control, and protection.
The high-voltage load switch has a simple arc extinguishing device, which is used for breaking load current and making short-circuit current. It is used for breaking load current, closed-loop current, no-load transformer and cable charging current, and making short-circuit current. Load switches equipped with grounding switches can withstand short-circuit currents. A load switch fuse combination device with a tripping device and a high breaking capacity fuse, with a phase failure tripping function, can cut off short circuit current and be used as short circuit protection for distribution transformers.